The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 29, 2008
Filed:
Dec. 12, 2001
Chunming Zhao, Jiangsu, CN;
Jinghong Guo, Jiangsu, CN;
Xiaohu You, Jiangsu, CN;
Shixin Cheng, Jiangsu, CN;
Chunming Zhao, Jiangsu, CN;
Jinghong Guo, Jiangsu, CN;
Xiaohu You, Jiangsu, CN;
Shixin Cheng, Jiangsu, CN;
The Research Institute of Telecommunication, Beijing, CN;
Southeast University, Jiangsu, CN;
Abstract
The present invention discloses a method for pilot channel tracking based on multipath channel barycenter tracking loop, comprises steps of evaluating multipath fading channel parameters, calculating the barycenter of a multipath energy window, and loop filtering and adjusting the phase of spread spectrum sequence codes. The method of the invention does not need to individually track each delay path, thereby improving the tracking performance and timing recovery stability of a spread spectrum receiver. Only a multipath channel evaluator and a multipath energy window barycenter calculating means are used to track PN signals from a plurality of signal sources, thereby reducing hardware. Thus, a novelty coherent spread spectrum receiver can be constituted by cooperating with other parts.